Move libnet/ content to top of git repo

1. Moved scripts into libnet/scripts/, moved debian/ into libnet/,
and other top-level content into libnet/.
2. Moved libnet/* up to ./

1 files changed, 189 insertions, 0 deletions

diff --git a/src/libnet_build_stp.c b/src/libnet_build_stp.c
new file mode 100644
index 0000000..c77d382
--- /dev/null
+++ b/src/libnet_build_stp.c
@@ -0,0 +1,189 @@
+/*
+ *  $Id: libnet_build_stp.c,v 1.9 2004/04/13 17:32:28 mike Exp $
+ *
+ *  libnet
+ *  libnet_build_stp.c - STP packet assembler
+ *
+ *  Copyright (c) 1998 - 2004 Mike D. Schiffman <mike@infonexus.com>
+ *  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include "common.h"
+
+libnet_ptag_t
+libnet_build_stp_conf(uint16_t id, uint8_t version, uint8_t bpdu_type,
+uint8_t flags, const uint8_t *root_id, uint32_t root_pc, const uint8_t *bridge_id,
+uint16_t port_id, uint16_t message_age, uint16_t max_age,
+uint16_t hello_time, uint16_t f_delay, const uint8_t *payload,
+uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
+{
+    uint32_t n, h;
+    libnet_pblock_t *p;
+
+    /* until we get some data marshalling in place we can't use this */
+    /* struct libnet_stp_conf_hdr stp_hdr; */
+    uint8_t stp_hdr[35];
+    uint16_t value_s;
+    uint32_t value_l;
+
+    if (l == NULL)
+    { 
+        return (-1);
+    } 
+
+    n = LIBNET_STP_CONF_H + payload_s;          /* size of memory block */
+    h = 0;                                      /* no checksum */
+
+    /*
+     *  Find the existing protocol block if a ptag is specified, or create
+     *  a new one.
+     */
+    p = libnet_pblock_probe(l, ptag, n, LIBNET_PBLOCK_STP_CONF_H);
+    if (p == NULL)
+    {
+        return (-1);
+    }
+
+    /* until we get some data marshalling in place we can't use this */
+    /*
+    stp_hdr.stp_id      = htons(id);
+    stp_hdr.stp_version = version;
+    stp_hdr.stp_bpdu_type = bpdu_type;
+    stp_hdr.stp_flags   = flags;
+    memcpy(&stp_hdr.stp_rootid, root_id, 8);
+    stp_hdr.stp_rootpc = htonl(root_pc);
+    memcpy(&stp_hdr.stp_bridgeid, bridge_id, 8);
+    stp_hdr.stp_portid  = htons(port_id);
+    stp_hdr.stp_mage    = htons(message_age);
+    stp_hdr.stp_maxage  = htons(max_age);
+    stp_hdr.stp_hellot  = htons(hello_time);
+    stp_hdr.stp_fdelay  = htons(f_delay);
+    */
+
+    value_s = htons(id);
+    memcpy(stp_hdr, &value_s, 2);
+    stp_hdr[2] = version;
+    stp_hdr[3] = bpdu_type;
+    stp_hdr[4] = flags;
+    memcpy(&stp_hdr[5], root_id, 8);
+    value_l = htonl(root_pc);
+    memcpy(&stp_hdr[13], &value_l, 4);
+    memcpy(&stp_hdr[17], bridge_id, 8);
+    value_s = htons(port_id);
+    memcpy(&stp_hdr[25], &value_s, 2);
+#if (LIBNET_BIG_ENDIAN == 1)
+    value_s = htons(message_age);
+#else
+    value_s = message_age;
+#endif
+    memcpy(&stp_hdr[27], &value_s, 2);
+#if (LIBNET_BIG_ENDIAN == 1)
+    value_s = htons(max_age);
+#else
+    value_s = max_age;
+#endif
+    memcpy(&stp_hdr[29], &value_s, 2);
+#if (LIBNET_BIG_ENDIAN == 1)
+    value_s = htons(hello_time);
+#else
+    value_s = hello_time;
+#endif
+    memcpy(&stp_hdr[31], &value_s, 2);
+#if (LIBNET_BIG_ENDIAN == 1)
+    value_s = htons(f_delay);
+#else
+    value_s = f_delay;
+#endif
+    memcpy(&stp_hdr[33], &value_s, 2);
+
+
+    /* until we get some data marshalling in place we can't use this */
+    /*n = libnet_pblock_append(l, p, (uint8_t *)&stp_hdr, LIBNET_STP_CONF_H); */
+    n = libnet_pblock_append(l, p, stp_hdr, LIBNET_STP_CONF_H);
+    if (n == -1)
+    {
+        goto bad;
+    }
+
+    /* boilerplate payload sanity check / append macro */
+    LIBNET_DO_PAYLOAD(l, p);
+ 
+    return (ptag ? ptag : libnet_pblock_update(l, p, h,
+            LIBNET_PBLOCK_STP_CONF_H));
+bad:
+    libnet_pblock_delete(l, p);
+    return (-1);
+}
+
+
+libnet_ptag_t
+libnet_build_stp_tcn(uint16_t id, uint8_t version, uint8_t bpdu_type,
+const uint8_t *payload, uint32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
+{
+    uint32_t n, h;
+    libnet_pblock_t *p;
+
+    struct libnet_stp_tcn_hdr stp_hdr;
+
+    if (l == NULL)
+    { 
+        return (-1);
+    } 
+
+    n = LIBNET_STP_TCN_H + payload_s;           /* size of memory block */
+    h = 0;                                      /* no checksum */
+
+    /*
+     *  Find the existing protocol block if a ptag is specified, or create
+     *  a new one.
+     */
+    p = libnet_pblock_probe(l, ptag, n, LIBNET_PBLOCK_STP_TCN_H);
+    if (p == NULL)
+    {
+        return (-1);
+    }
+
+    memset(&stp_hdr, 0, sizeof(stp_hdr));
+    stp_hdr.stp_id        = htons(id);
+    stp_hdr.stp_version   = version;
+    stp_hdr.stp_bpdu_type = bpdu_type;
+
+    n = libnet_pblock_append(l, p, (uint8_t *)&stp_hdr, LIBNET_STP_TCN_H);
+    if (n == -1)
+    {
+        goto bad;
+    }
+ 
+    /* boilerplate payload sanity check / append macro */
+    LIBNET_DO_PAYLOAD(l, p);
+ 
+    return (ptag ? ptag : libnet_pblock_update(l, p, h,
+            LIBNET_PBLOCK_STP_TCN_H));
+bad:
+    libnet_pblock_delete(l, p);
+    return (-1);
+}
+
+/* EOF */